Hi there, I have had a problem with the machine tripping the earth leakage circuit so I was trying to get to the bottom of it. The machine would be fine on power up but after about 30s it would trip the RCD. Very odd one. There was some corrosion on the E stop on the machine so I plugged this out ju...

Cheers Steve, It's very odd why someone would go down this route. It was bought before my time here so it's possible the guy who ordered it got it from a refitter. However it may throw a light on the problem we had with this machine, i.e. stalling on the X axis. I've ordered a new ballscrew and anti...

Hi there, I took off the cross slide on our Novaturn to find a very small ballscrew inside. It appears to be 8mm x 2.5 pitch whereas all the documentation I have read, and all the drawings I have seen say that the Novaturn should have a 16x5 ballscrew. Does anyone know why this would be? Were the ba...

Hi all, Has anyone done this in the past? I have a machine that is losing position so I want to do a full strip. It doesn't always miss in the same position but it might be a flat spot on a ball so there is no harm having a look. The machine sits in the old style safety enclosure so I'm wondering if...

Yep, plenty of oil. No luck though. I thought the problem was isolated to the X axis but the Z asix is losing position too. It will lose position and attempt a tool change without going home. I'll try to upload a clip later.

No, it's not a backlash issue. I took off the guard at the top of the X and put a mark at the top of the stepper shaft. When the problem occurs the X axis counter continues to count till it gets to the desired value but the shaft is not moving during this time. For instance lets say I put in a 30mm ...

Steve, thanks for the info. The ball screw runs fine and slides are well oiled.
Martin, I just downloaded the software for V1.22 and popped in my old registration disk when asked. I didn't know I had to make any other changes. Am I missing something glaringly obvious here with the Eprom?

No bother DA, It a 1997 Novaturn running on V1.22. Leadscrew okay. I pulled the X stepper out and ran it in my hand. In the higher speeds it stops intermittantly while the display keeps going. I'm thinking that the pulses are being counted but that the control is open loop so once a pulse is sent to...

Hi there, I'm trying to get back to this problem I'm having with the X axis losing position. I gave up on it last time as it itook up too much time. It mainly occurs when using a G99 and especially if the X direction is reversed quickly, not so much on a G98 for some reason. Also sometimes when the ...

Thanks for that.
I have seen another post with the 9 pin having 1, 4 and 6 jumped so I'll give that a try too.

Cheers.
Tim.

Hi there, Would it be possible to send on the connection drawing as above for a Novaturn. Dispatch Jan 1997, seriel number 4885. I've always had problems with this machine and mainly its communication problems. I've opened up the cable, it's homemade but the person who made it has left. It's got som...

Hi there, When running a program recently on VR turning, I bored a 6mm diameter hole to a depth of 15mm with a pecking cycle, then changed to a 10mm drill and bored in 10mm. However the material was removed with the 6mm bit but not with the 10mm bit so when I show a section of the piece when I am fi...

When I open the Novaturn program I'm encountering a few problems. The units will come up automatically as imperial. Can I change a program file so the automatically come up as metric. Also I changed some items in the tool library and in the tooling menu but when I open the program again the old ones...

Problem solved. Gear stripped in gearbox.

Hi there, I won't use the machine till I can sort out the turret however I was using tool post 3 to run a few programs with just a roughing tool. I'm having a problem with it though losing it's X postion. On one program the first cutting move takes the tool in a facing operation from X30 Z0 to X0 Z0...

Hi there, I fired up the novaturn machine after it had been sitting idle for a few months. I am now having a lot of problems with it. The turret is vibrating very badly and is very hot. It only occurs though in certain postions. If I change from tool 1 to another, everytime I pass one of the other p...

I'm wondering if my PC is too slow for the signals coming back from the machine. It's a 1Gig machine and there is plenty of memory in it but when I have the task manager up it shows that the CPU is running at 100% when it is changing tools and up in the 80's when doing most operations. What size PC'...

Hi there, I am having problems at the moment with the machine not returning to zero. When homing in the X axis it just gets near the sensor then it freezes emitting a high pitched noise till I hit the Estop and then home it again. I doesn't happen all the time but maybe once every third time you hom...

That's great thanks a lot for the tip.

Hi folks, this should be an easy one for you. After I put in a canned cycle to cut an M10 thread, it makes a couple of passes without cutting anything. N150 G00 X10 Z-12 N160 G76 P050060 Q035 R.05 N170 G76 X8.16 Z-25 P920 Q070 F1.5 N180 G28 UO WO N190 M30 Can soneone tell me which variable controls ...